<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>console.log(控制台文本提示)</title>
    <script>
        console.log("WDNMD");
    </script>
</head>
<body>
    在后台console能看到
</body>
</html>